"The simplicity of Smith's concept and beauty of the site posed direct challenges to the perfect implementation of the artwork," said SOM.
"Of particular importance was the 42-degree sloped site and the necessity of the 30-foot-long mirrored plane to be a perfectly level extruded form, free from internal structural elements."
An LED screen displays shifting colours
During the day, the mirrored surface reflects the light and scenery. As night falls, the LED display shows a shifting array of light and colour like an artificial sky.
"At sunset, the reflection of the glowing sky and onshore moving clouds merges with floating, shifting gradients of light across the surface of the work," said Phillip K Smith III.